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Anonymous users2024-02-08How to deal with SIM card not recognized by mobile phone:
1. Please confirm whether the SIM card type is correct according to the mobile phone model. An incorrect SIM card can damage the card tray and card slot or even fail to be removed;
2. Please make sure to use a standard SIM card. Do not use a non-standard SIM card or cut the card by yourself, cutting the card can easily cause the SIM card to be unable to recognize or damage the mobile phone, it is recommended to go to the business hall to change the original standard SIM card;
3. Please confirm whether the card is placed correctly. Whether the notch of the SIM card corresponds to the card slot;
4. Please confirm whether the surface of the SIM card is dirty. If the SIM card has been used for a long time, you can wipe the surface of the chip with alcohol, or go to the business office to replace the original standard SIM card. If the SIM card is used for a long time, the metal surface is easy to be oxidized, which is easy to cause probabilistic card recognition;
5. Do not plug or unplug the SIM card when the device is turned on. After inserting the SIM card, please restart your phone and try;
6. If the problem still exists, please back up the data in advance and bring the purchase invoice to the after-sales service point for maintenance.
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Anonymous users2024-02-07If your phone can't read the card or the SIM card can't be detected, there may be one of the following situations:
1. The contact between the metal contacts of the mobile phone card and the mobile phone is insufficient.
Second, the mobile phone card is damaged.
3. Whether the location is a signal blind area or suddenly no signal.
Fourth, you can try to put the card on other mobile phones to try, and judge whether it is a problem with the card or the mobile phone through the method of changing the card and changing the phone.
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Anonymous users2024-02-06There are two situations in this situation, first, the card slot is loose and the card is caused by poor contact. Second, you didn't put the card, although the SIM card is not broken, and the card slot is fine, but you don't put the card in the card slot, then the phone must show no card
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